When you observe polymorphisms in a DNA sequence with alleles at intermediate frequencies (e. g. 0.1 to 0.9), the most likely explanation is:

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth

What causes temperature extremes in the desert